Official site with information and resources relating to all aspects of environmental conservation: data, maps and laws. Specific environmental information by zip code provides immediate relevance to your world.

Theodore Roosevelt's presidency had a focus on conservation. This site outlines the first five water projects begun in the early 1900s in the western United States that had a great effect on opening up land for agricultural production.

Lessons for students K-12 in which they study original map of Yosemite National Park, ca. 1935 and explore appropriate human uses of the environment.

Access to information, policy initiatives, advice, and analysis on issues of energy efficiency and renewable energy, from the U.S. Department of Energy. Its network is responsible for tracking the technological, economic, and...